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authorOlof Johansson <olof@lixom.net>2013-01-14 10:20:02 -0800
committerOlof Johansson <olof@lixom.net>2013-01-14 10:20:02 -0800
commit8d84981e395850aab31c3f2ca7e2738e03f671d7 (patch)
tree933425fddb23d28be802277471df3fe3f6c2711d /drivers/acpi/apei/erst-dbg.c
parent00c82d64405631967dca3890a9ce80ab35d04cc7 (diff)
parent77cc982f6a3b33a5aa058ad3b20cda8866db2948 (diff)
downloadop-kernel-dev-8d84981e395850aab31c3f2ca7e2738e03f671d7.zip
op-kernel-dev-8d84981e395850aab31c3f2ca7e2738e03f671d7.tar.gz
Merge branch 'clocksource/cleanup' into next/cleanup
Clockevent cleanup series from Shawn Guo. Resolved move/change conflict in mach-pxa/time.c due to the sys_timer cleanup. * clocksource/cleanup: clocksource: use clockevents_config_and_register() where possible ARM: use clockevents_config_and_register() where possible clockevents: export clockevents_config_and_register for module use + sync to Linux 3.8-rc3 Signed-off-by: Olof Johansson <olof@lixom.net> Conflicts: arch/arm/mach-pxa/time.c
Diffstat (limited to 'drivers/acpi/apei/erst-dbg.c')
-rw-r--r--drivers/acpi/apei/erst-dbg.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/acpi/apei/erst-dbg.c b/drivers/acpi/apei/erst-dbg.c
index 903549d..04ab5c9 100644
--- a/drivers/acpi/apei/erst-dbg.c
+++ b/drivers/acpi/apei/erst-dbg.c
@@ -111,8 +111,17 @@ retry_next:
if (rc)
goto out;
/* no more record */
- if (id == APEI_ERST_INVALID_RECORD_ID)
+ if (id == APEI_ERST_INVALID_RECORD_ID) {
+ /*
+ * If the persistent store is empty initially, the function
+ * 'erst_read' below will return "-ENOENT" value. This causes
+ * 'retry_next' label is entered again. The returned value
+ * should be zero indicating the read operation is EOF.
+ */
+ len = 0;
+
goto out;
+ }
retry:
rc = len = erst_read(id, erst_dbg_buf, erst_dbg_buf_len);
/* The record may be cleared by others, try read next record */
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