[PATCH AUTOSEL for 4.9 165/293] libertas: Fix lbs_prb_rsp_limit_set()

[Sasha Levin]

From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

[ Upstream commit 69551f5f370cc20342fab17ca54716b6ec7e332d ]

The kstrtoul() test was reversed so this always returned -ENOTSUPP.

Fixes: 27d7f47756f4 ("net: wireless: replace strict_strtoul() with kstrtoul()")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Reviewed-by: James Cameron <quozl@xxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
 drivers/net/wireless/marvell/libertas/mesh.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/marvell/libertas/mesh.c b/drivers/net/wireless/marvell/libertas/mesh.c
index d0c881dd5846..a78c4d18fe4b 100644
--- a/drivers/net/wireless/marvell/libertas/mesh.c
+++ b/drivers/net/wireless/marvell/libertas/mesh.c
@@ -239,8 +239,9 @@ static ssize_t lbs_prb_rsp_limit_set(struct device *dev,
 	memset(&mesh_access, 0, sizeof(mesh_access));
 	mesh_access.data[0] = cpu_to_le32(CMD_ACT_SET);
 
-	if (!kstrtoul(buf, 10, &retry_limit))
-		return -ENOTSUPP;
+	ret = kstrtoul(buf, 10, &retry_limit);
+	if (ret)
+		return ret;
 	if (retry_limit > 15)
 		return -ENOTSUPP;
 
-- 
2.15.1