Displaying 5 results from an estimated 5 matches for "devm_xxx".
2017 Dec 12
1
[PATCHv2] virtio_mmio: fix devm cleanup
On Tue, Dec 12, 2017 at 10:26:24PM +0800, weiping zhang wrote:
> 2017-12-12 21:45 GMT+08:00 Mark Rutland <mark.rutland at arm.com>:
> Hi Mark,
Hi,
> thanks your patch, I dig into these three devm_xxx funciton,
> all of them represented by a struct devres as following,
>
> struct devres_node {
> struct list_head entry;
> dr_release_t release;
> #ifdef CONFIG_DEBUG_DEVRES
> const char *name;
>...
2017 Dec 12
1
[PATCHv2] virtio_mmio: fix devm cleanup
On Tue, Dec 12, 2017 at 10:26:24PM +0800, weiping zhang wrote:
> 2017-12-12 21:45 GMT+08:00 Mark Rutland <mark.rutland at arm.com>:
> Hi Mark,
Hi,
> thanks your patch, I dig into these three devm_xxx funciton,
> all of them represented by a struct devres as following,
>
> struct devres_node {
> struct list_head entry;
> dr_release_t release;
> #ifdef CONFIG_DEBUG_DEVRES
> const char *name;
>...
2017 Dec 12
4
[PATCHv2] virtio_mmio: fix devm cleanup
Recent rework of the virtio_mmio probe/remove paths balanced a
devm_ioremap() with an iounmap() rather than its devm variant. This ends
up corrupting the devm datastructures, and results in the following
boot-time splat on arm64 under QEMU 2.9.0:
[ 3.450397] ------------[ cut here ]------------
[ 3.453822] Trying to vfree() nonexistent vm area (00000000c05b4844)
[ 3.460534] WARNING: CPU:
2017 Dec 12
4
[PATCHv2] virtio_mmio: fix devm cleanup
Recent rework of the virtio_mmio probe/remove paths balanced a
devm_ioremap() with an iounmap() rather than its devm variant. This ends
up corrupting the devm datastructures, and results in the following
boot-time splat on arm64 under QEMU 2.9.0:
[ 3.450397] ------------[ cut here ]------------
[ 3.453822] Trying to vfree() nonexistent vm area (00000000c05b4844)
[ 3.460534] WARNING: CPU:
2017 Dec 12
0
[PATCHv2] virtio_mmio: fix devm cleanup
...return 0;
> --
> 2.11.0
>
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Hi Mark,
thanks your patch, I dig into these three devm_xxx funciton,
all of them represented by a struct devres as following,
struct devres_node {
struct list_head entry;
dr_release_t release;
#ifdef CONFIG_DEBUG_DEVRES
const char *name;
size_t...