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usb: musb: ux500_dma: fix potential NULL dereference error

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static checker warning: "drivers/usb/musb/ux500_dma.c:335
ux500_dma_controller_start()
         error: potential NULL dereference 'param_array'."

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Lee Jones 2013-12-13 10:47:28 +00:00 committed by Felipe Balbi
parent 5056ee83e8
commit 086ed9a0bc
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/musb/ux500_dma.c
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@ -336,7 +336,9 @@ static int ux500_dma_controller_start(struct ux500_dma_controller *controller)
data ? data ?
data->dma_filter : data->dma_filter :
NULL, NULL,
param_array[ch_num]); param_array ?
param_array[ch_num] :
NULL);
if (!ux500_channel->dma_chan) { if (!ux500_channel->dma_chan) {
ERR("Dma pipe allocation error dir=%d ch=%d\n", ERR("Dma pipe allocation error dir=%d ch=%d\n",