scsi: ufs: mediatek: Fix out-of-bounds access in MCQ IRQ mapping

Address a potential out-of-bounds access issue when accessing
'host->mcq_intr_info[q_index]'. The value of 'q_index' might exceed the
valid array bounds if 'q_index == nr'.  Correct condition to 'q_index >=
nr' to prevent accessing invalid memory.

Fixes: 66e26a4 ("scsi: ufs: host: mediatek: Set IRQ affinity policy for MCQ mode")
Cc: [email protected]
Reported-by: Dan Carpenter <[email protected]>
Signed-off-by: Peter Wang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Martin K. Petersen <[email protected]>

Author: ptr324

drivers/ufs/host/ufs-mediatek.c

@@ -818,7 +818,7 @@ static u32 ufs_mtk_mcq_get_irq(struct ufs_hba *hba, unsigned int cpu)
 	unsigned int q_index;
 
 	q_index = map->mq_map[cpu];
-	if (q_index > nr) {
+	if (q_index >= nr) {
 		dev_err(hba->dev, "hwq index %d exceed %d\n",
 			q_index, nr);
 		return MTK_MCQ_INVALID_IRQ;