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-rw-r--r--kernel/kgdb.c23
1 files changed, 9 insertions, 14 deletions
diff --git a/kernel/kgdb.c b/kernel/kgdb.c
index 761fdd2b303..42fd128127a 100644
--- a/kernel/kgdb.c
+++ b/kernel/kgdb.c
@@ -391,27 +391,22 @@ int kgdb_mem2hex(char *mem, char *buf, int count)
/*
* Copy the binary array pointed to by buf into mem. Fix $, #, and
- * 0x7d escaped with 0x7d. Return a pointer to the character after
- * the last byte written.
+ * 0x7d escaped with 0x7d. Return -EFAULT on failure or 0 on success.
+ * The input buf is overwitten with the result to write to mem.
*/
static int kgdb_ebin2mem(char *buf, char *mem, int count)
{
- int err = 0;
- char c;
+ int size = 0;
+ char *c = buf;
while (count-- > 0) {
- c = *buf++;
- if (c == 0x7d)
- c = *buf++ ^ 0x20;
-
- err = probe_kernel_write(mem, &c, 1);
- if (err)
- break;
-
- mem++;
+ c[size] = *buf++;
+ if (c[size] == 0x7d)
+ c[size] = *buf++ ^ 0x20;
+ size++;
}
- return err;
+ return probe_kernel_write(mem, c, size);
}
/*