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authorMark Brown <broonie@linaro.org>2014-05-01 21:47:52 +0400
committerMark Brown <broonie@linaro.org>2014-05-03 20:58:19 +0400
commitc3676d5ceff213cba35af5ee5f320d2e8dc48cdf (patch)
treed126ddf1fbde696d5f412cafcfcb9b17723e320f /drivers/spi
parent2de440f59ca9615c92820d165d5e59756e54026b (diff)
downloadlinux-c3676d5ceff213cba35af5ee5f320d2e8dc48cdf.tar.xz
spi: core: Don't destroy master queue if we fail to create it
If we fail to create the master queue for some reason we should not attempt to clean it up since attempting to stop a kthread that was not created will hang and it's just generally bad practice. Unfortunately at present we call spi_destroy_queue() even in cases where the creation fails. Fix this by fixing the error handling in spi_master_initialize_queue() so that we only flag the master as queued or destroy the queue if creation succeeded. The change to the flag is done since the general master cleanup uses this to destroy the queue. Reported-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 6046dcd7487e..939edf473235 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1172,7 +1172,6 @@ static int spi_master_initialize_queue(struct spi_master *master)
{
int ret;
- master->queued = true;
master->transfer = spi_queued_transfer;
if (!master->transfer_one_message)
master->transfer_one_message = spi_transfer_one_message;
@@ -1183,6 +1182,7 @@ static int spi_master_initialize_queue(struct spi_master *master)
dev_err(&master->dev, "problem initializing queue\n");
goto err_init_queue;
}
+ master->queued = true;
ret = spi_start_queue(master);
if (ret) {
dev_err(&master->dev, "problem starting queue\n");
@@ -1192,8 +1192,8 @@ static int spi_master_initialize_queue(struct spi_master *master)
return 0;
err_start_queue:
-err_init_queue:
spi_destroy_queue(master);
+err_init_queue:
return ret;
}