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authorTom Rix <trix@redhat.com>2023-05-17 19:56:05 +0300
committerJeffrey Hugo <quic_jhugo@quicinc.com>2023-05-23 18:43:11 +0300
commit0e163e54c34c12369ccf6562e74e8f0a800f4aad (patch)
treedaca5f8f411b70dabc257f94f1624721c0a15890 /drivers/accel/qaic
parentc21f11d182c2180d8b90eaff84f574cfa845b250 (diff)
downloadlinux-0e163e54c34c12369ccf6562e74e8f0a800f4aad.tar.xz
accel/qaic: initialize ret variable to 0
clang static analysis reports drivers/accel/qaic/qaic_data.c:610:2: warning: Undefined or garbage value returned to caller [core.uninitialized.UndefReturn] return ret; ^~~~~~~~~~ From a code analysis of the function, the ret variable is only set some of the time but is always returned. This suggests ret can return uninitialized garbage. However BO allocation will ensure ret is always set in reality. Initialize ret to 0 to silence the warning. Fixes: ff13be830333 ("accel/qaic: Add datapath") Signed-off-by: Tom Rix <trix@redhat.com> [jhugo: Reword commit text] Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Reviewed-by: Carl Vanderlip <quic_carlv@quicinc.com> Reviewed-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230517165605.16770-1-quic_jhugo@quicinc.com
Diffstat (limited to 'drivers/accel/qaic')
-rw-r--r--drivers/accel/qaic/qaic_data.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/accel/qaic/qaic_data.c b/drivers/accel/qaic/qaic_data.c
index c0a574cd1b35..b46a16fb3080 100644
--- a/drivers/accel/qaic/qaic_data.c
+++ b/drivers/accel/qaic/qaic_data.c
@@ -591,7 +591,7 @@ static int qaic_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struc
struct qaic_bo *bo = to_qaic_bo(obj);
unsigned long offset = 0;
struct scatterlist *sg;
- int ret;
+ int ret = 0;
if (obj->import_attach)
return -EINVAL;