skd: Fix out of array boundary access

When enabling MSI-X, interrupts are requested for SKD_MAX_MSIX_COUNT
entries in skdev->msix_entries array, while the number of actually
allocated entries is skdev->msix_count. This might lead to an out of
boundary access in case number of allocated entries is less than
SKD_MAX_MSIX_COUNT. This update fixes the described misbehaviour.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: linux-pci@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index eb6e1e0e8db2..3fa0918ddaf8 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -3989,7 +3989,7 @@ static int skd_acquire_msix(struct skd_device *skdev)
         }
 
         /* Enable MSI-X vectors for the base queue */
-        for (i = 0; i < SKD_MAX_MSIX_COUNT; i++) {
+        for (i = 0; i < skdev->msix_count; i++) {
                 qentry = &skdev->msix_entries[i];
                 snprintf(qentry->isr_name, sizeof(qentry->isr_name),
                          "%s%d-msix %s", DRV_NAME, skdev->devno,