From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 2 Nov 2017 22:27:13 +0100
* Add a jump target so that a specific error message is stored only once
at the end of this function implementation.
* Replace two calls of the function "dev_err" by goto statements.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/staging/fbtft/fb_ssd1331.c | 22 ++++++++++------------
1 file changed, 10 insertions(+), 12 deletions(-)
diff --git a/drivers/staging/fbtft/fb_ssd1331.c b/drivers/staging/fbtft/fb_ssd1331.c
index 9aa9864fcf30..b3a8f2668951 100644
--- a/drivers/staging/fbtft/fb_ssd1331.c
+++ b/drivers/staging/fbtft/fb_ssd1331.c
@@ -76,12 +76,9 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
if (par->gpio.dc != -1)
gpio_set_value(par->gpio.dc, 0);
ret = par->fbtftops.write(par, par->buf, sizeof(u8));
- if (ret < 0) {
- va_end(args);
- dev_err(par->info->device,
- "write() failed and returned %d\n", ret);
- return;
- }
+ if (ret < 0)
+ goto end_va;
+
len--;
if (len) {
@@ -89,16 +86,17 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
while (i--)
*buf++ = (u8)va_arg(args, unsigned int);
ret = par->fbtftops.write(par, par->buf, len * (sizeof(u8)));
- if (ret < 0) {
- va_end(args);
- dev_err(par->info->device,
- "write() failed and returned %d\n", ret);
- return;
- }
+ if (ret < 0)
+ goto end_va;
}
if (par->gpio.dc != -1)
gpio_set_value(par->gpio.dc, 1);
va_end(args);
+ return;
+
+end_va:
+ va_end(args);
+ dev_err(par->info->device, "write() failed and returned %d\n", ret);
}
/*
--
2.15.0
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