[PATCH][next] habanalabs/gaudi: Fix uninitialized return code rc when read size is zero

[Colin King]

From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

In the case where size is zero the while loop never assigns rc and the
return value is uninitialized. Fix this by initializing rc to zero.

Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: 639781dcab82 ("habanalabs/gaudi: add debugfs to DMA from the device")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
 drivers/misc/habanalabs/gaudi/gaudi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index 8730b691ec61..b751652f80a8 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -6252,7 +6252,7 @@ static int gaudi_debugfs_read_dma(struct hl_device *hdev, u64 addr, u32 size,
 	dma_addr_t dma_addr;
 	void *kernel_addr;
 	bool is_eng_idle;
-	int rc, dma_id;
+	int rc = 0, dma_id;
 
 	kernel_addr = hdev->asic_funcs->asic_dma_alloc_coherent(
 						hdev, SZ_2M,
-- 
2.30.2