If a 'clk_prepare_enable()' fails, then we need to disable_unprepare the
clk already handled.
With the current implemenatation, we try to do that on the clk that has
triggered the error, which is a no-op and leave msm_host->bus_clks[0]
untouched.
Count forward in order to fix it and be more future proof.
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
v2: change the for loop from a backward to a forward one, to ease reading.
---
drivers/gpu/drm/msm/dsi/dsi_host.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 1fc07ce24686..e6f56cd8ce08 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -422,7 +422,7 @@ static int dsi_clk_init(struct msm_dsi_host *msm_host)
static int dsi_bus_clk_enable(struct msm_dsi_host *msm_host)
{
const struct msm_dsi_config *cfg = msm_host->cfg_hnd->cfg;
- int i, ret;
+ int i, j, ret;
DBG("id=%d", msm_host->id);
@@ -437,8 +437,8 @@ static int dsi_bus_clk_enable(struct msm_dsi_host *msm_host)
return 0;
err:
- for (; i > 0; i--)
- clk_disable_unprepare(msm_host->bus_clks[i]);
+ for (j = 0; j < i; j++)
+ clk_disable_unprepare(msm_host->bus_clks[j]);
return ret;
}
--
2.9.3
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