From: Jesper Juhl <juhl-lkml@dif.dk>
Date: Fri, 24 Jun 2005 04:06:56 +0000 (-0700)
Subject: [SLIP]: Simplify sl_free_bufs()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9b200b02a6c9cddca5132d64aa41156bbcddcbaa;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[SLIP]: Simplify sl_free_bufs()

We can avoid assignments to the local variable 'tmp' and
actually get rid of tmp alltogether in sl_free_bufs(). This patch does
that.  This is safe since both kfree() and slhc_free() handles NULL
pointers gracefully.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/slip.c b/drivers/net/slip.c
index 19112712daf0..c79e0ad4ba02 100644
--- a/drivers/net/slip.c
+++ b/drivers/net/slip.c
@@ -198,18 +198,12 @@ err_exit:
 static void
 sl_free_bufs(struct slip *sl)
 {
-	void * tmp;
-
 	/* Free all SLIP frame buffers. */
-	tmp = xchg(&sl->rbuff, NULL);
-	kfree(tmp);
-	tmp = xchg(&sl->xbuff, NULL);
-	kfree(tmp);
+	kfree(xchg(&sl->rbuff, NULL));
+	kfree(xchg(&sl->xbuff, NULL));
 #ifdef SL_INCLUDE_CSLIP
-	tmp = xchg(&sl->cbuff, NULL);
-	kfree(tmp);
-	if ((tmp = xchg(&sl->slcomp, NULL)) != NULL)
-		slhc_free(tmp);
+	kfree(xchg(&sl->cbuff, NULL));
+	slhc_free(xchg(&sl->slcomp, NULL));
 #endif
 }