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9ccb645683
Currently the null check on key is occurring after the strcasecmp on the key, hence there is a potential null pointer dereference on key. Fix this by checking if key is null first. Also replace the == 0 check on strcasecmp with just the ! operator. Detected by CoverityScan, CID#1248787 ("Dereference before null check") Fixes: fa766c9be58b ("[media] Altera FPGA firmware download module") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>