FAIL_MMC_REQUEST can be used without FAULT_INJECTION_DEBUG_FS.
In this case fault_create_debugfs_attr() will always return an error and
lead to the deletion of the whole debugfs directory.
This patch makes sure that FAULT_INJECTION_DEBUG_FS is enabled before
attempting to create the debugfs atttribute.
Signed-off-by: Adrien Schildknecht <adrien+...@schischi.me>
---
drivers/mmc/core/debugfs.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c
index 154aced..13e842c 100644
--- a/drivers/mmc/core/debugfs.c
+++ b/drivers/mmc/core/debugfs.c
@@ -259,11 +259,13 @@ void mmc_add_host_debugfs(struct mmc_host *host)
if (fail_request)
setup_fault_attr(&fail_default_attr, fail_request);
host->fail_mmc_request = fail_default_attr;
+#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS
if (IS_ERR(fault_create_debugfs_attr("fail_mmc_request",
root,
&host->fail_mmc_request)))
goto err_node;
#endif
+#endif
return;
err_node:
--
2.6.2
--
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