linux-kernel - [PATCH 4.9 097/206] ath10k: use the right length of "background"

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Date:   Tue, 10 Jan 2017 14:36:20 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Nicolas Iooss <nicolas.iooss_linux@....org>,
        Kalle Valo <kvalo@....qualcomm.com>
Subject: [PATCH 4.9 097/206] ath10k: use the right length of "background"

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nicolas Iooss <nicolas.iooss_linux@....org>

commit 31b239824ece321c09bdb8e61e1d14814eaba38b upstream.

The word "background" contains 10 characters so the third argument of
strncmp() need to be 10 in order to match this prefix correctly.

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@....org>
Fixes: 855aed1220d2 ("ath10k: add spectral scan feature")
Signed-off-by: Kalle Valo <kvalo@....qualcomm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/wireless/ath/ath10k/spectral.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/wireless/ath/ath10k/spectral.c
+++ b/drivers/net/wireless/ath/ath10k/spectral.c
@@ -338,7 +338,7 @@ static ssize_t write_file_spec_scan_ctl(
 		} else {
 			res = -EINVAL;
 		}
-	} else if (strncmp("background", buf, 9) == 0) {
+	} else if (strncmp("background", buf, 10) == 0) {
 		res = ath10k_spectral_scan_config(ar, SPECTRAL_BACKGROUND);
 	} else if (strncmp("manual", buf, 6) == 0) {
 		res = ath10k_spectral_scan_config(ar, SPECTRAL_MANUAL);