From: Markus Elfring <[email protected]>
Date: Mon, 30 Oct 2017 16:26:09 +0100

* The script "checkpatch.pl" pointed information out like the following.

  WARNING: Prefer seq_puts to seq_printf

  Thus fix the affected source code places.

* Adjust jump targets so that a bit of exception handling can be better
  reused at the end of this function.

Signed-off-by: Markus Elfring <[email protected]>
---
 drivers/pinctrl/pinctrl-mcp23s08.c | 34 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-mcp23s08.c 
b/drivers/pinctrl/pinctrl-mcp23s08.c
index 919eb7268331..d1a7c627dbb9 100644
--- a/drivers/pinctrl/pinctrl-mcp23s08.c
+++ b/drivers/pinctrl/pinctrl-mcp23s08.c
@@ -723,25 +723,20 @@ static void mcp23s08_dbg_show(struct seq_file *s, struct 
gpio_chip *chip)
        mutex_lock(&mcp->lock);
 
        t = __check_mcp23s08_reg_cache(mcp);
-       if (t) {
-               seq_printf(s, " I/O Error\n");
-               goto done;
-       }
+       if (t)
+               goto report_failure;
+
        t = mcp_read(mcp, MCP_IODIR, &iodir);
-       if (t) {
-               seq_printf(s, " I/O Error\n");
-               goto done;
-       }
+       if (t)
+               goto report_failure;
+
        t = mcp_read(mcp, MCP_GPIO, &gpio);
-       if (t) {
-               seq_printf(s, " I/O Error\n");
-               goto done;
-       }
+       if (t)
+               goto report_failure;
+
        t = mcp_read(mcp, MCP_GPPU, &gppu);
-       if (t) {
-               seq_printf(s, " I/O Error\n");
-               goto done;
-       }
+       if (t)
+               goto report_failure;
 
        for (t = 0, mask = BIT(0); t < chip->ngpio; t++, mask <<= 1) {
                const char *label;
@@ -758,8 +753,13 @@ static void mcp23s08_dbg_show(struct seq_file *s, struct 
gpio_chip *chip)
                /* NOTE:  ignoring the irq-related registers */
                seq_puts(s, "\n");
        }
-done:
+unlock:
        mutex_unlock(&mcp->lock);
+       return;
+
+report_failure:
+       seq_puts(s, " I/O Error\n");
+       goto unlock;
 }
 
 #else
-- 
2.14.3

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