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net: thunderx: avoid dereferencing xcv when NULL 

This fixes the following smatch and coccinelle warnings:

  drivers/net/ethernet/cavium/thunder/thunder_xcv.c:119 xcv_setup_link() error: we previously assumed 'xcv' could be null (see line 118) [smatch]
  drivers/net/ethernet/cavium/thunder/thunder_xcv.c:119:16-20: ERROR: xcv is NULL but dereferenced. [coccinelle]

Fixes: 6465859aba ("net: thunderx: Add RGMII interface type support")
Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net>
Cc: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vincent 2017-01-30 15:06:43 +01:00 committed by David S. Miller
parent 040587af31
commit c73e442693
1 changed files with 1 additions and 2 deletions
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3
drivers/net/ethernet/cavium/thunder/thunder_xcv.c
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@ -116,8 +116,7 @@ void xcv_setup_link(bool link_up, int link_speed)
int speed = 2;
if (!xcv) {
dev_err(&xcv->pdev->dev,
"XCV init not done, probe may have failed\n");
pr_err("XCV init not done, probe may have failed\n");
return;
}