similar to: [PATCH 0/3] fix cleanup for fail to register_virtio_device

This series fix the cleanup for the caller of register_virtio_device, the main work is use put_device instead of kfree. V1->V2: * virtio_pci: add comments for the reason use put_device * virtio vop: also use put_device in in _vop_remove_device() weiping zhang (3): virtio_pci: use put_device instead of kfree virtio: use put_device instead of kfree virtio: put reference count of

This series fix the cleanup for the caller of register_virtio_device, the main work is use put_device instead of kfree. V1->V2: * virtio_pci: add comments for the reason use put_device * virtio vop: also use put_device in in _vop_remove_device() weiping zhang (3): virtio_pci: use put_device instead of kfree virtio: use put_device instead of kfree virtio: put reference count of

On Mon, 11 Dec 2017 23:55:26 +0800 weiping zhang <zhangweiping at didichuxing.com> wrote: > don't free vp_vdev until vp_vdev.dev.release be called. Same comment as for the virtio_pci patch. > > Signed-off-by: weiping zhang <zhangweiping at didichuxing.com> > --- > drivers/misc/mic/vop/vop_main.c | 16 +++++++++------- > 1 file changed, 9 insertions(+), 7

On Mon, 11 Dec 2017 23:55:26 +0800 weiping zhang <zhangweiping at didichuxing.com> wrote: > don't free vp_vdev until vp_vdev.dev.release be called. Same comment as for the virtio_pci patch. > > Signed-off-by: weiping zhang <zhangweiping at didichuxing.com> > --- > drivers/misc/mic/vop/vop_main.c | 16 +++++++++------- > 1 file changed, 9 insertions(+), 7

Hi, The main change is split device_register into 2 sperate calls: device_initalize() and device_add, and then the caller can use put_device safety when fail to register_virtio_device. v3->v4: * split device_register into device_initialize and devicea_add that the caller can always use put_device when fail to register virtio device. v2->v3: * virtio: add new helper do get

Hi, The main change is split device_register into 2 sperate calls: device_initalize() and device_add, and then the caller can use put_device safety when fail to register_virtio_device. v3->v4: * split device_register into device_initialize and devicea_add that the caller can always use put_device when fail to register virtio device. v2->v3: * virtio: add new helper do get

Hi, Patch1 add a helper to get virtio_device's status which will be used later. Patch2~4: check virtio_device's status is RTIO_CONFIG_S_ACKNOWLEDGE or not, if so use put_device otherwise use kfree. Patch5: add comments for virtio_register_device help caller do a proper cleanup if got failure. weiping zhang (5): virtio: add helper virtio_get_status virtio_pci: don't kfree device

Hi, Patch1 add a helper to get virtio_device's status which will be used later. Patch2~4: check virtio_device's status is RTIO_CONFIG_S_ACKNOWLEDGE or not, if so use put_device otherwise use kfree. Patch5: add comments for virtio_register_device help caller do a proper cleanup if got failure. weiping zhang (5): virtio: add helper virtio_get_status virtio_pci: don't kfree device

rproc_virtio_dev_release will be called iff virtio_device.dev's reference count drops to 0. Here we just put vdev.dev, and then rproc->dev's cleanup will be done in rproc_virtio_dev_release. Signed-off-by: weiping zhang <zhangweiping at didichuxing.com> --- drivers/remoteproc/remoteproc_virtio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git

As mentioned at drivers/base/core.c: /* * NOTE: _Never_ directly free @dev after calling this function, even * if it returned an error! Always use put_device() to give up the * reference initialized in this function instead. */ so we don't free vp_vdev until vp_vdev.dev.release be called. Signed-off-by: weiping zhang <zhangweiping at didichuxing.com> ---

don't free vp_vdev until vp_vdev.dev.release be called. Signed-off-by: weiping zhang <zhangweiping at didichuxing.com> --- drivers/misc/mic/vop/vop_main.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/misc/mic/vop/vop_main.c b/drivers/misc/mic/vop/vop_main.c index a341938..8c716a0 100644 --- a/drivers/misc/mic/vop/vop_main.c +++

On Wed, 20 Dec 2017 12:27:33 +0800 weiping zhang <zwp10758 at gmail.com> wrote: > rproc_virtio_dev_release will be called iff virtio_device.dev's > refer count became to 0. Here we should check if we call device_register "reference count drops to 0" s/call/called/ > or not, if called, put vdev.dev, and then rproc->dev's cleanup will be > done in

Some vqs don't need to be allocated when the related feature bits are disabled. Callers notice the vq allocation layer by setting the related names[i] to be NULL. This patch series fixes the find_vqs implementations to handle this case. Wei Wang (2): virtio_pci: use queue idx instead of array idx to set up the vq virtio: don't allocate vqs when names[i] = NULL

Some vqs don't need to be allocated when the related feature bits are disabled. Callers notice the vq allocation layer by setting the related names[i] to be NULL. This patch series fixes the find_vqs implementations to handle this case. Wei Wang (2): virtio_pci: use queue idx instead of array idx to set up the vq virtio: don't allocate vqs when names[i] = NULL

As mentioned at drivers/base/core.c: /* * NOTE: _Never_ directly free @dev after calling this function, even * if it returned an error! Always use put_device() to give up the * reference initialized in this function instead. */ so we don't free vdev until vdev->vdev.dev.release be called. Signed-off-by: weiping zhang <zhangweiping at didichuxing.com> ---

As mentioned at drivers/base/core.c: /* * NOTE: _Never_ directly free @dev after calling this function, even * if it returned an error! Always use put_device() to give up the * reference initialized in this function instead. */ so we don't free vdev until vdev->vdev.dev.release be called. Signed-off-by: weiping zhang <zhangweiping at didichuxing.com> Reviewed-by: Cornelia Huck

index can be reused by other virtio device. Signed-off-by: weiping zhang <zhangweiping at didichuxing.com> --- drivers/virtio/virtio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index 48230a5..bf7ff39 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -333,6 +333,8 @@ int register_virtio_device(struct

index can be reused by other virtio device. Signed-off-by: weiping zhang <zhangweiping at didichuxing.com> --- drivers/virtio/virtio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index 48230a5..bf7ff39 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -333,6 +333,8 @@ int register_virtio_device(struct

this patchset try to add cleanup for virtio_mmio driver, include virtio_mmio_probe and virtio_mmio_remove weiping zhang (2): virtio_mmio: add cleanup for virtio_mmio_probe virtio_mmio: add cleanup for virtio_mmio_remove drivers/virtio/virtio_mmio.c | 57 ++++++++++++++++++++++++++++++++++++-------- 1 file changed, 47 insertions(+), 10 deletions(-) -- 2.9.4

this patchset try to add cleanup for virtio_mmio driver, include virtio_mmio_probe and virtio_mmio_remove weiping zhang (2): virtio_mmio: add cleanup for virtio_mmio_probe virtio_mmio: add cleanup for virtio_mmio_remove drivers/virtio/virtio_mmio.c | 57 ++++++++++++++++++++++++++++++++++++-------- 1 file changed, 47 insertions(+), 10 deletions(-) -- 2.9.4