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| author | Jan Beulich <JBeulich@novell.com> | 2005-09-13 01:25:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-13 08:22:28 -0700 |
| commit | 0f3d2bd54f8fb178f516fc6903366e16e20f7428 (patch) | |
| tree | be457190729938d6f5f43d5c64e994ac4ea80424 | |
| parent | a1a5b3d93ca45613ec1d920fdb131b69b6553882 (diff) | |
| download | lwn-0f3d2bd54f8fb178f516fc6903366e16e20f7428.tar.gz lwn-0f3d2bd54f8fb178f516fc6903366e16e20f7428.zip | |
[PATCH] free initrd mem adjustment
Besides freeing initrd memory, also clear out the now dangling pointers to
it, to make sure accidental late use attempts can be detected.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | init/initramfs.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/init/initramfs.c b/init/initramfs.c index 02c5ce64990d..0c5d9a3f951b 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -466,6 +466,14 @@ static char * __init unpack_to_rootfs(char *buf, unsigned len, int check_only) extern char __initramfs_start[], __initramfs_end[]; #ifdef CONFIG_BLK_DEV_INITRD #include <linux/initrd.h> + +static void __init free_initrd(void) +{ + free_initrd_mem(initrd_start, initrd_end); + initrd_start = 0; + initrd_end = 0; +} + #endif void __init populate_rootfs(void) @@ -484,7 +492,7 @@ void __init populate_rootfs(void) printk(" it is\n"); unpack_to_rootfs((char *)initrd_start, initrd_end - initrd_start, 0); - free_initrd_mem(initrd_start, initrd_end); + free_initrd(); return; } printk("it isn't (%s); looks like an initrd\n", err); @@ -493,7 +501,7 @@ void __init populate_rootfs(void) sys_write(fd, (char *)initrd_start, initrd_end - initrd_start); sys_close(fd); - free_initrd_mem(initrd_start, initrd_end); + free_initrd(); } } #endif |