[1/2] MIPS: malta: memory.c: Initialize the 'memsize' variable

Message ID 1400848292-19544-1-git-send-email-markos.chandras@imgtec.com
State Accepted
Delegated to: Ralf Baechle
Headers show

Commit Message

Markos Chandras May 23, 2014, 12:31 p.m.
If the 'memsize' environmental variable is not set by the bootloader
the 'memsize' variable is not initialized, leading to potential memory
problems. This patch fixes the problem by setting the initial
value to '0' to force the kernel to set a good default memory size.

Cc: <stable@vger.kernel.org> # v3.15+
Reported-by: Matheus Almeida <Matheus.Almeida@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
---
 arch/mips/mti-malta/malta-memory.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/arch/mips/mti-malta/malta-memory.c b/arch/mips/mti-malta/malta-memory.c
index 6d0f4ab..f2364e4 100644
--- a/arch/mips/mti-malta/malta-memory.c
+++ b/arch/mips/mti-malta/malta-memory.c
@@ -27,7 +27,7 @@  unsigned long physical_memsize = 0L;
 fw_memblock_t * __init fw_getmdesc(int eva)
 {
 	char *memsize_str, *ememsize_str __maybe_unused = NULL, *ptr;
-	unsigned long memsize, ememsize __maybe_unused = 0;
+	unsigned long memsize = 0, ememsize __maybe_unused = 0;
 	static char cmdline[COMMAND_LINE_SIZE] __initdata;
 	int tmp;