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Blackfin: fix length checking in kgdb_ebin2mem 

The kgdb_ebin2mem() was decrementing the count variable to do parsing, but
then later still tries to use it based on its original meaning.  So leave
it untouched and use a different variable to walk the memory.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Roel Kluin 2009-06-04 19:57:24 -04:00 committed by Mike Frysinger
parent 11aca0e735
commit 0a99061426
1 changed files with 2 additions and 3 deletions
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5
arch/blackfin/kernel/kgdb.c
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@ -587,19 +587,18 @@ int kgdb_ebin2mem(char *buf, char *mem, int count)
unsigned short *mmr16; unsigned short *mmr16;
unsigned long *mmr32; unsigned long *mmr32;
int err; int err;
int size = 0; int size;
int cpu = raw_smp_processor_id(); int cpu = raw_smp_processor_id();
tmp_old = tmp_new = buf; tmp_old = tmp_new = buf;
while (count-- > 0) { for (size = 0; size < count; ++size) {
if (*tmp_old == 0x7d) if (*tmp_old == 0x7d)
*tmp_new = *(++tmp_old) ^ 0x20; *tmp_new = *(++tmp_old) ^ 0x20;
else else
*tmp_new = *tmp_old; *tmp_new = *tmp_old;
tmp_new++; tmp_new++;
tmp_old++; tmp_old++;
size++;
} }
err = validate_memory_access_address((unsigned long)mem, size); err = validate_memory_access_address((unsigned long)mem, size);