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staging: rtl8187se: Fix failure to check pci_map_single()

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Beginning with kernel 3.8, the DMA mapping routines issue a warning
for the first call to pci_map_single() that is not checked with a
pci_dma_mapping_error() call.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Larry Finger 2012-12-26 20:51:13 -06:00 committed by Greg Kroah-Hartman
parent efe57d5977
commit 0d826c3919
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/rtl8187se/r8180_core.c
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@ -937,7 +937,8 @@ short alloc_rx_desc_ring(struct net_device *dev, u16 bufsize, int count)
dma_tmp = pci_map_single(pdev, buf, bufsize * sizeof(u8),
PCI_DMA_FROMDEVICE);
if (pci_dma_mapping_error(pdev, dma_tmp))
return -1;
if (-1 == buffer_add(&(priv->rxbuffer), buf, dma_tmp,
&(priv->rxbufferhead))) {
DMESGE("Unable to allocate mem RX buf");