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Groups > linux.kernel > #1327343
| From | Insu Yun <wuninsu@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH] qxl: handling failed allocation |
| Date | 2016-02-05 00:20 +0100 |
| Message-ID | <qYBlU-lJ-27@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
Since kmalloc can be failed in memory pressure, check and return error code otherwise NULL deference could be happened Signed-off-by: Insu Yun <wuninsu@gmail.com> --- drivers/gpu/drm/qxl/qxl_kms.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c index b2977a1..02d26b3 100644 --- a/drivers/gpu/drm/qxl/qxl_kms.c +++ b/drivers/gpu/drm/qxl/qxl_kms.c @@ -221,6 +221,9 @@ static int qxl_device_init(struct qxl_device *qdev, kmalloc(qdev->n_mem_slots * sizeof(struct qxl_memslot), GFP_KERNEL); + if (!qdev->mem_slots) + return -ENOMEM; + idr_init(&qdev->release_idr); spin_lock_init(&qdev->release_idr_lock); spin_lock_init(&qdev->release_lock); -- 1.9.1
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[PATCH] qxl: handling failed allocation Insu Yun <wuninsu@gmail.com> - 2016-02-05 00:20 +0100
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