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authorGrygorii Strashko <grygorii.strashko@ti.com>2017-01-31 14:04:04 -0600
committerDavid S. Miller <davem@davemloft.net>2017-02-01 12:05:51 -0500
commitf696186203076770f51eb5890712e696e6bb72d7 (patch)
tree6e9f8d9cc02b333153a203b29ae62168063317f9 /include/crypto/des.h
parentb2504a5dbef3305ef41988ad270b0e8ec289331c (diff)
net: ethernet: ti: cpsw: fix NULL pointer dereference in switch mode
In switch mode on struct cpsw_slave->ndev field will be initialized with proper value only for the one cpsw slave port, as result cpsw_get_usage_count() will generate "Unable to handle kernel NULL pointer dereference" exception when first ethernet interface is opening cpsw_ndo_open(). This issue causes boot regression on AM335x EVM and reproducible on am57xx-evm (switch mode). Fix it by adding additional check for !cpsw->slaves[i].ndev in cpsw_get_usage_count(). Cc: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Fixes: 03fd01ad0eea ("net: ethernet: ti: cpsw: don't duplicate ndev_running") Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Reviewed-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/crypto/des.h')
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