From: Larry Finger Date: Thu, 27 Dec 2012 02:51:13 +0000 (-0600) Subject: staging: rtl8187se: Fix failure to check pci_map_single() X-Git-Tag: firefly_0821_release~3680^2~1238^2~15 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0d826c3919ceede3c6afc3e87fc7087e0c863e7e;p=firefly-linux-kernel-4.4.55.git staging: rtl8187se: Fix failure to check pci_map_single() 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 Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c index ae38475854b5..d10d75e8a33f 100644 --- a/drivers/staging/rtl8187se/r8180_core.c +++ b/drivers/staging/rtl8187se/r8180_core.c @@ -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");