diff options
| author | Glenn Langedock <Glenn.Langedock@barco.com> | 2020-06-17 14:37:21 +0300 |
|---|---|---|
| committer | Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2020-06-24 13:10:09 +0300 |
| commit | fdcfec11b215b3bbc9c20240739cf76be921cca1 (patch) | |
| tree | d2e637aeb3226c1d82fbaf276b2507b24a86a493 /drivers/dma/sun4i-dma.c | |
| parent | 8346b92ecddfae624b1dd4631e840fb98f5430cd (diff) | |
| download | linux-fdcfec11b215b3bbc9c20240739cf76be921cca1.tar.xz | |
gpio: zynq: protect direction in/out with a spinlock
Fix race condition when changing the direction (in/out) of the GPIO pin.
The read-modify-write sequence (as coded in the driver) isn't atomic and
requires synchronization (spinlock).
Signed-off-by: Glenn Langedock <Glenn.Langedock@barco.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'drivers/dma/sun4i-dma.c')
0 files changed, 0 insertions, 0 deletions