[RFC,2/4] drm/etnaviv: Fix error path in etnaviv_gpu_clk_enable()
diff mbox series

Message ID 20200430124602.14463-3-frieder.schrempf@kontron.de
State New
Headers show
Series
  • Add support for i.MX8MM GPUs through Etnaviv
Related show

Commit Message

Frieder Schrempf April 30, 2020, 12:46 p.m. UTC
From: Frieder Schrempf <frieder.schrempf@kontron.de>

In case enabling of the bus clock fails etnaviv_gpu_clk_enable()
returns without disabling the already enabled reg clock. Fix this.

Fixes: 65f037e8e908 ("drm/etnaviv: add support for slave interface clock")
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
---
 drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Patch
diff mbox series

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index 23877c1f150a..7b138d4dd068 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -1496,7 +1496,7 @@  static int etnaviv_gpu_clk_enable(struct etnaviv_gpu *gpu)
 	if (gpu->clk_bus) {
 		ret = clk_prepare_enable(gpu->clk_bus);
 		if (ret)
-			return ret;
+			goto disable_clk_reg;
 	}
 
 	if (gpu->clk_core) {
@@ -1519,6 +1519,9 @@  static int etnaviv_gpu_clk_enable(struct etnaviv_gpu *gpu)
 disable_clk_bus:
 	if (gpu->clk_bus)
 		clk_disable_unprepare(gpu->clk_bus);
+disable_clk_reg:
+	if (gpu->clk_reg)
+		clk_disable_unprepare(gpu->clk_reg);
 
 	return ret;
 }