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authorDaniel Mack <zonque@gmail.com>2013-03-04 00:57:20 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2013-04-05 12:57:18 +0100
commitad2457894c272279bf73ca46ae5ea5de4876d2a0 (patch)
tree11675f958813b5a7cefa1771212eaed57032acb1 /include/linux/platform_data/elm.h
parent0cca9fbf5d0a65fb536d38427f48460fda1f2e99 (diff)
mtd: devices: elm: check for device's presence before configuration
In case the driver is not probed - due to config mismatches or errors in the DTS files - dev_get_drvdata() returns NULL, leading to an Ooops during boot. Make elm_config() return an error in such cases to propagate the error up to the user, so it can fall back to software mode. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'include/linux/platform_data/elm.h')
-rw-r--r--include/linux/platform_data/elm.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/platform_data/elm.h b/include/linux/platform_data/elm.h
index 1bd5244d1dc..bf0a83b7ed9 100644
--- a/include/linux/platform_data/elm.h
+++ b/include/linux/platform_data/elm.h
@@ -50,5 +50,5 @@ struct elm_errorvec {
void elm_decode_bch_error_page(struct device *dev, u8 *ecc_calc,
struct elm_errorvec *err_vec);
-void elm_config(struct device *dev, enum bch_ecc bch_type);
+int elm_config(struct device *dev, enum bch_ecc bch_type);
#endif /* __ELM_H */