diff options
| author | Nicolas Pitre <nicolas.pitre@linaro.org> | 2011-04-22 03:59:49 +0200 |
|---|---|---|
| committer | Nicolas Pitre <nico@fluxnic.net> | 2011-05-07 06:08:01 +0200 |
| commit | ccc1c7c6c25661f0071a7ebe997abcbf529df3e9 (patch) | |
| tree | a879518e3e9d70521d0ac1103ec3bbbd2a2b7aba /arch/arm/boot | |
| parent | ARM: zImage: simplify decompress_kernel() (diff) | |
| download | linux-ccc1c7c6c25661f0071a7ebe997abcbf529df3e9.tar.xz linux-ccc1c7c6c25661f0071a7ebe997abcbf529df3e9.zip | |
ARM: zImage: don't ignore error returned from decompress()
If decompress() returns an error without calling error(), we must
not attempt to boot the resulting kernel.
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot')
| -rw-r--r-- | arch/arm/boot/compressed/decompress.c | 4 | ||||
| -rw-r--r-- | arch/arm/boot/compressed/misc.c | 13 |
2 files changed, 11 insertions, 6 deletions
diff --git a/arch/arm/boot/compressed/decompress.c b/arch/arm/boot/compressed/decompress.c index 4c72a97bc3e1..07be5a2f8302 100644 --- a/arch/arm/boot/compressed/decompress.c +++ b/arch/arm/boot/compressed/decompress.c @@ -44,7 +44,7 @@ extern void error(char *); #include "../../../../lib/decompress_unlzma.c" #endif -void do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x)) +int do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x)) { - decompress(input, len, NULL, NULL, output, NULL, error); + return decompress(input, len, NULL, NULL, output, NULL, error); } diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c index 51b87b54a7ef..65871a7ba0d7 100644 --- a/arch/arm/boot/compressed/misc.c +++ b/arch/arm/boot/compressed/misc.c @@ -177,7 +177,7 @@ asmlinkage void __div0(void) error("Attempting division by 0!"); } -extern void do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x)); +extern int do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x)); void @@ -185,6 +185,8 @@ decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p, unsigned long free_mem_ptr_end_p, int arch_id) { + int ret; + output_data = (unsigned char *)output_start; free_mem_ptr = free_mem_ptr_p; free_mem_end_ptr = free_mem_ptr_end_p; @@ -193,7 +195,10 @@ decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p, arch_decomp_setup(); putstr("Uncompressing Linux..."); - do_decompress(input_data, input_data_end - input_data, - output_data, error); - putstr(" done, booting the kernel.\n"); + ret = do_decompress(input_data, input_data_end - input_data, + output_data, error); + if (ret) + error("decompressor returned an error"); + else + putstr(" done, booting the kernel.\n"); } |