pstore/ram: Restore ecc information block
This was lost when proc/last_kmsg moved to pstore/console-ramoops.
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index a5ee252..32cbd7c 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -136,6 +136,7 @@
char **buf, struct pstore_info *psi)
{
ssize_t size;
+ ssize_t ecc_notice_size;
struct ramoops_context *cxt = psi->data;
struct persistent_ram_zone *prz;
@@ -156,11 +157,18 @@
time->tv_nsec = 0;
size = persistent_ram_old_size(prz);
- *buf = kmemdup(persistent_ram_old(prz), size, GFP_KERNEL);
+
+ /* ECC correction notice */
+ ecc_notice_size = persistent_ram_ecc_string(prz, NULL, 0);
+
+ *buf = kmalloc(size + ecc_notice_size + 1, GFP_KERNEL);
if (*buf == NULL)
return -ENOMEM;
- return size;
+ memcpy(*buf, persistent_ram_old(prz), size);
+ persistent_ram_ecc_string(prz, *buf + size, ecc_notice_size + 1);
+
+ return size + ecc_notice_size;
}
static size_t ramoops_write_kmsg_hdr(struct persistent_ram_zone *prz)