[next] ath11k: fix uninitialized variable radioup

Commit Message

Colin King Dec. 12, 2019, 7:10 p.m. UTC

From: Colin Ian King <[e-mail]>

The variable radioup is not uninitalized so it may contain a garbage
value and hence the detection of a radio that is not up is buggy.
Fix this by initializing it to zero.

Addresses-Coverity: ("Uninitalized scalar variable")
Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Signed-off-by: Colin Ian King <[e-mail]>
---
 drivers/net/wireless/ath/ath11k/debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Kalle Valo Dec. 18, 2019, 5:53 p.m. UTC | #1

Colin King <[e-mail]> wrote:

> The variable radioup is not uninitalized so it may contain a garbage
> value and hence the detection of a radio that is not up is buggy.
> Fix this by initializing it to zero.
> 
> Addresses-Coverity: ("Uninitalized scalar variable")
> Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
> Signed-off-by: Colin Ian King <[e-mail]>
> Signed-off-by: Kalle Valo <[e-mail]>

Patch applied to ath-next branch of ath.git, thanks.

08cc0f44f5ed ath11k: fix uninitialized variable radioup

Patch

diff --git a/drivers/net/wireless/ath/ath11k/debug.c b/drivers/net/wireless/ath/ath11k/debug.c
index c27fffd13a5d..34b960453edc 100644
--- a/drivers/net/wireless/ath/ath11k/debug.c
+++ b/drivers/net/wireless/ath/ath11k/debug.c
@@ -541,7 +541,7 @@  static ssize_t ath11k_write_simulate_fw_crash(struct file *file,
 	struct ath11k *ar = ab->pdevs[0].ar;
 	char buf[32] = {0};
 	ssize_t rc;
-	int i, ret, radioup;
+	int i, ret, radioup = 0;
 
 	for (i = 0; i < ab->num_radios; i++) {
 		pdev = &ab->pdevs[i];