[PATCH v2 7/8] pstore: make sure pstore_write exists on flush error

[dragos . tatulea]

From: Dragos Tatulea <dragos.tatu...@intel.com>

Return error if flushing to backend failed.

Signed-off-by: Dragos Tatulea <dragos.tatu...@intel.com>
---
 fs/pstore/platform.c |    8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 3a4c38f..25f59ed 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -445,7 +445,7 @@ void pstore_del_timer(void)
 int pstore_write(enum pstore_type_id type, const char *buf, size_t size)
 {
        size_t len;
-       int err = 0, err2;
+       int err = 0;
 
        if (!psinfo)
                return -ENODEV;
@@ -461,16 +461,14 @@ int pstore_write(enum pstore_type_id type, const char 
*buf, size_t size)
                psinfo->ext_part = 1;
        }
 
-       while (size) {
+       while (size && !err) {
                len = min(size, psinfo->bufsize - psinfo->ext_len);
                memcpy(psinfo->buf + psinfo->ext_len, buf, len);
                psinfo->ext_len += len;
                buf += len;
                size -= len;
                if (psinfo->ext_len == psinfo->bufsize) {
-                       err2 = pstore_ext_flush();
-                       if (err2 && !err)
-                               err = err2;
+                       err = pstore_ext_flush();
                }
        }
 
-- 
1.7.9.5

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