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authorJakub Kicinski <kuba@kernel.org>2020-11-28 03:25:27 +0100
committerJakub Kicinski <kuba@kernel.org>2020-11-28 03:25:27 +0100
commit5c39f26e67c984db0fa95f9faecf06eb0198dce7 (patch)
tree821aaa43d3f5806134438daa531be6d171292c5f /drivers/spi/spi.c
parentMerge branch 'tipc-some-minor-improvements' (diff)
parentMerge tag 'asm-generic-fixes-5.10-2' of git://git.kernel.org/pub/scm/linux/ke... (diff)
downloadlinux-5c39f26e67c984db0fa95f9faecf06eb0198dce7.tar.xz
linux-5c39f26e67c984db0fa95f9faecf06eb0198dce7.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Trivial conflict in CAN, keep the net-next + the byteswap wrapper. Conflicts: drivers/net/can/usb/gs_usb.c Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/spi/spi.c')
-rw-r--r--drivers/spi/spi.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 05c75f890ace..fc9a59788d2e 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -3372,12 +3372,15 @@ int spi_setup(struct spi_device *spi)
if (!spi->max_speed_hz)
spi->max_speed_hz = spi->controller->max_speed_hz;
+ mutex_lock(&spi->controller->io_mutex);
+
if (spi->controller->setup)
status = spi->controller->setup(spi);
if (spi->controller->auto_runtime_pm && spi->controller->set_cs) {
status = pm_runtime_get_sync(spi->controller->dev.parent);
if (status < 0) {
+ mutex_unlock(&spi->controller->io_mutex);
pm_runtime_put_noidle(spi->controller->dev.parent);
dev_err(&spi->controller->dev, "Failed to power device: %d\n",
status);
@@ -3399,6 +3402,8 @@ int spi_setup(struct spi_device *spi)
spi_set_cs(spi, false);
}
+ mutex_unlock(&spi->controller->io_mutex);
+
if (spi->rt && !spi->controller->rt) {
spi->controller->rt = true;
spi_set_thread_rt(spi->controller);