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Date: Wed, 9 Feb 2022 06:52:54 -0800 From: trix@...hat.com To: Felix.Kuehling@....com, alexander.deucher@....com, christian.koenig@....com, Xinhui.Pan@....com, airlied@...ux.ie, daniel@...ll.ch, nathan@...nel.org, ndesaulniers@...gle.com, david.yatsin@....com, rajneesh.bhardwaj@....com Cc: amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, llvm@...ts.linux.dev, Tom Rix <trix@...hat.com> Subject: [PATCH] drm/amdkfd: fix freeing an unset pointer From: Tom Rix <trix@...hat.com> clang static analysis reports this problem kfd_chardev.c:2092:2: warning: 1st function call argument is an uninitialized value kvfree(bo_privs); ^~~~~~~~~~~~~~~~ When bo_buckets alloc fails, it jumps to an error handler that frees the yet to be allocated bo_privs. Because bo_buckets is the first error, return directly. Fixes: 5ccbb057c0a1 ("drm/amdkfd: CRIU Implement KFD checkpoint ioctl") Signed-off-by: Tom Rix <trix@...hat.com> --- drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index 64e3b4e3a7126..636391c61cafb 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -1982,10 +1982,8 @@ static int criu_checkpoint_bos(struct kfd_process *p, void *mem; bo_buckets = kvzalloc(num_bos * sizeof(*bo_buckets), GFP_KERNEL); - if (!bo_buckets) { - ret = -ENOMEM; - goto exit; - } + if (!bo_buckets) + return -ENOMEM; bo_privs = kvzalloc(num_bos * sizeof(*bo_privs), GFP_KERNEL); if (!bo_privs) { -- 2.26.3
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