linux-kernel - [PATCH] fbdev: simplefb: Check before clk

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Date:   Thu,  2 Jun 2022 02:42:18 -0700
From:   Yihao Han <hanyihao@...o.com>
To:     Hans de Goede <hdegoede@...hat.com>, Helge Deller <deller@....de>,
        linux-fbdev@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Cc:     Yihao Han <hanyihao@...o.com>
Subject: [PATCH] fbdev: simplefb: Check before clk_put() not needed

clk_put() already checks the clk ptr using !clk and IS_ERR()
so there is no need to check it again before calling it.

Signed-off-by: Yihao Han <hanyihao@...o.com>
---
 drivers/video/fbdev/simplefb.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c
index 2c198561c338..f96ce8801be4 100644
--- a/drivers/video/fbdev/simplefb.c
+++ b/drivers/video/fbdev/simplefb.c
@@ -237,8 +237,7 @@ static int simplefb_clocks_get(struct simplefb_par *par,
 		if (IS_ERR(clock)) {
 			if (PTR_ERR(clock) == -EPROBE_DEFER) {
 				while (--i >= 0) {
-					if (par->clks[i])
-						clk_put(par->clks[i]);
+					clk_put(par->clks[i]);
 				}
 				kfree(par->clks);
 				return -EPROBE_DEFER;
-- 
2.17.1