From: Colin King <colin.king@canonical.com>
To: "Felix Kuehling" <Felix.Kuehling@amd.com>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>,
"David Airlie" <airlied@linux.ie>,
"Daniel Vetter" <daniel@ffwll.ch>,
"Alex Sierra" <alex.sierra@amd.com>,
"Philip Yang" <Philip.Yang@amd.com>,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH][next] drm/amdkfd: fix uint32 variable compared to less than zero
Date: Thu, 22 Apr 2021 13:31:58 +0100 [thread overview]
Message-ID: <20210422123158.247332-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king@canonical.com>
Currently the call to kfd_process_gpuidx_from_gpuid is returning an
int value and this is being assigned to a uint32_t variable gpuidx
and this is being checked for a negative error return which is always
going to be false. Fix this by making gpuidx an int32_t. This makes
gpuidx also type consistent with the use of gpuidx from the callers.
Addresses-Coverity: ("Unsigned compared against 0")
Fixes: cda0f85bfa5e ("drm/amdkfd: refine migration policy with xnack on")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
index 0e0b4ffd20ab..bf3c8de85b4a 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
@@ -1330,7 +1330,7 @@ static void svm_range_unreserve_bos(struct svm_validate_context *ctx)
*/
static int svm_range_validate_and_map(struct mm_struct *mm,
struct svm_range *prange,
- uint32_t gpuidx, bool intr, bool wait)
+ int32_t gpuidx, bool intr, bool wait)
{
struct svm_validate_context ctx;
struct hmm_range *hmm_range;
--
2.30.2
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next reply other threads:[~2021-04-22 12:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-22 12:31 Colin King [this message]
2021-04-22 19:42 ` [PATCH][next] drm/amdkfd: fix uint32 variable compared to less than zero Felix Kuehling
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