From: Himangi Saraogi <himangi774@gmail.com>
To: Jeff Dike <jdike@addtoit.com>,
Richard Weinberger <richard@nod.at>,
user-mode-linux-devel@lists.sourceforge.net,
user-mode-linux-user@lists.sourceforge.net,
linux-kernel@vger.kernel.org
Cc: Julia Lawall <julia.lawall@lip6.fr>
Subject: [PATCH] uml: Eliminate NULL test after alloc_bootmem
Date: Sat, 19 Jul 2014 17:03:16 +0530 [thread overview]
Message-ID: <20140719113316.GA23543@himangi-Dell> (raw)
alloc_bootmem and related functions never return NULL. Thus a NULL
test after calls to these functions is unnecessary.
The following Coccinelle semantic patch was used for making the change:
@@
expression E;
statement S;
@@
E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...)
... when != E
- if (E == NULL) S
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
---
arch/um/kernel/initrd.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/um/kernel/initrd.c b/arch/um/kernel/initrd.c
index 55cead8..48bae81 100644
--- a/arch/um/kernel/initrd.c
+++ b/arch/um/kernel/initrd.c
@@ -37,8 +37,6 @@ static int __init read_initrd(void)
}
area = alloc_bootmem(size);
- if (area == NULL)
- return 0;
if (load_initrd(initrd, area, size) == -1)
return 0;
--
1.9.1
reply other threads:[~2014-07-19 11:33 UTC|newest]
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