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authorBernhard Messerklinger <bernhard.messerklinger@br-automation.com>2017-09-28 11:29:52 +0200
committerSimon Glass <sjg@chromium.org>2017-11-16 18:45:05 -0700
commit6dfd65f81fd060a85c961a84f85a286e8e96332c (patch)
tree1b4ac320e97f0783e5da9c88efe8e31eb409f636 /cmd
parentc253573f3e269fd9a24ee6684d87dd91106018a5 (diff)
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cmd/fdt.c align data buffer to avoid unaligned word access
Since the compiler is free to place a char array to any address in memory (in this case the stack), also to a non word aligned address the function "fdt_prop_parse" runs into troubles upon it wants to write some (fdt32_t *) to such a variable (if it has been placed to a none word aligned address). To avoid this we tell the compiler to always align this scratchpad to a word aligned address. Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com> Reviewed-by: Hannes Schmelzer <oe5hpm@oevsv.at> Tested-by: Hannes Schmelzer <oe5hpm@oevsv.at> Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'cmd')
-rw-r--r--cmd/fdt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/cmd/fdt.c b/cmd/fdt.c
index 955a008..b783b0d 100644
--- a/cmd/fdt.c
+++ b/cmd/fdt.c
@@ -256,7 +256,7 @@ static int do_fdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
char *pathp; /* path */
char *prop; /* property */
int nodeoffset; /* node offset from libfdt */
- static char data[SCRATCHPAD]; /* storage for the property */
+ static char data[SCRATCHPAD] __aligned(4);/* property storage */
const void *ptmp;
int len; /* new length of the property */
int ret; /* return value */