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authorTomoya MORINAGA <tomoya.rohm@gmail.com>2011-12-09 05:13:29 +0100
committerGrant Likely <grant.likely@secretlab.ca>2012-03-10 04:58:36 +0100
commit0f57e168aa109775430c76cc663fb64909813d84 (patch)
treebeeb8ae94e79bce0fba840bcb1216c9d642c2376 /drivers/spi/spi-topcliff-pch.c
parentspi-topcliff-pch: supports a spi mode setup and bit order setup by IO control (diff)
downloadlinux-0f57e168aa109775430c76cc663fb64909813d84.tar.xz
linux-0f57e168aa109775430c76cc663fb64909813d84.zip
spi-topcliff-pch: add recovery processing in case wait-event timeout
Currently, pch_spi_start_transfer failure is not anticipated. This patch adds the processing. Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/spi/spi-topcliff-pch.c')
-rw-r--r--drivers/spi/spi-topcliff-pch.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c
index 5a477e91426f..c9e1fcc923bc 100644
--- a/drivers/spi/spi-topcliff-pch.c
+++ b/drivers/spi/spi-topcliff-pch.c
@@ -1266,8 +1266,16 @@ static void pch_spi_process_messages(struct work_struct *pwork)
char *save_rx_buf = data->cur_trans->rx_buf;
for (i = 0; i < cnt; i ++) {
pch_spi_handle_dma(data, &bpw);
- if (!pch_spi_start_transfer(data))
+ if (!pch_spi_start_transfer(data)) {
+ data->transfer_complete = true;
+ data->current_msg->status = -EIO;
+ data->current_msg->complete
+ (data->current_msg->context);
+ data->bcurrent_msg_processing = false;
+ data->current_msg = NULL;
+ data->cur_trans = NULL;
goto out;
+ }
pch_spi_copy_rx_data_for_dma(data, bpw);
}
data->cur_trans->rx_buf = save_rx_buf;