diff options
| author | Bharat Bhushan <Bharat.Bhushan@freescale.com> | 2015-06-08 11:01:05 (GMT) |
|---|---|---|
| committer | Honghua Yin <Hong-Hua.Yin@freescale.com> | 2015-06-09 06:15:57 (GMT) |
| commit | 21090f1e2889190450ec0b833dffd0a3af372e2a (patch) | |
| tree | bb28e9447c5609d9122b329bfba16a6cc6e203e8 | |
| parent | cf6af41b293fb4526041d14227a051a8bd6a53ea (diff) | |
| download | linux-fsl-qoriq-21090f1e2889190450ec0b833dffd0a3af372e2a.tar.xz | |
VFIO: Check for null pointer after malloc
Add the check whether malloc allocated memory successfully or not
Signed-off-by: Bharat Bhushan <Bharat.Bhushan@freescale.com>
Change-Id: If306002aa8541cf76286b7b78d0027c3395672a6
Reviewed-on: http://git.am.freescale.net:8181/37576
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Stuart Yoder <stuart.yoder@freescale.com>
Reviewed-by: Honghua Yin <Hong-Hua.Yin@freescale.com>
| -rw-r--r-- | drivers/vfio/vfio_iommu_fsl_pamu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/vfio/vfio_iommu_fsl_pamu.c b/drivers/vfio/vfio_iommu_fsl_pamu.c index d049edc..4d300da 100644 --- a/drivers/vfio/vfio_iommu_fsl_pamu.c +++ b/drivers/vfio/vfio_iommu_fsl_pamu.c @@ -200,6 +200,9 @@ static int vaddr_get_pfn(unsigned long vaddr, int prot, unsigned long *pfn, int i; pages = kzalloc(sizeof(*pages) * nr_pages, GFP_KERNEL); + if (!pages) + return -ENOMEM; + ret = get_user_pages_fast(vaddr, nr_pages, !!(prot & IOMMU_WRITE), pages); if (ret != nr_pages) goto error; |