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| author | Sonic Zhang <sonic.zhang@analog.com> | 2007-12-21 17:03:39 +0800 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2007-12-21 17:03:39 +0800 |
| commit | 75b780bd99b851682289e7a88763ede5a936edb0 (patch) | |
| tree | 446d602b4bfd75685c30e1e94910dd00573ff09f /drivers | |
| parent | 1b73351c6afcc3acbf9e29a43ee14b3c9a386503 (diff) | |
| download | linux-75b780bd99b851682289e7a88763ede5a936edb0.tar.gz linux-75b780bd99b851682289e7a88763ede5a936edb0.tar.bz2 linux-75b780bd99b851682289e7a88763ede5a936edb0.zip | |
[Blackfin] serial driver: Fix bug Free rx dma buffer in shutdown.
Kernel crash for the serial driver in DMA mode:
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3679
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/serial/bfin_5xx.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index 3a2aa7e277fa..838f491c8deb 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -704,6 +704,7 @@ static void bfin_serial_shutdown(struct uart_port *port) disable_dma(uart->rx_dma_channel); free_dma(uart->rx_dma_channel); del_timer(&(uart->rx_dma_timer)); + dma_free_coherent(NULL, PAGE_SIZE, uart->rx_dma_buf.buf, 0); #else #ifdef CONFIG_KGDB_UART if (uart->port.line != CONFIG_KGDB_UART_PORT) |