diff options
| author | Dmitry Eremin-Solenikov <dmitry_eremin@mentor.com> | 2013-01-31 21:06:34 +0400 |
|---|---|---|
| committer | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2013-02-22 11:22:19 +0400 |
| commit | 24dea0c9feccf699749f860fa2f4ccd84d30390d (patch) | |
| tree | d2adf3a0478ae150b46462da4293876222d6d8ab /include/linux | |
| parent | be0638d9e4795254e28e39eff61e38f47d240fd2 (diff) | |
| download | linux-24dea0c9feccf699749f860fa2f4ccd84d30390d.tar.xz | |
mtd: map: BUG() in non handled cases
Several map-related functions look like a serie of ifs, checking
widths of map. Those functions do not have any handling for default
case. Instead of fiddling with uninitialized_var in those functions,
let's just add a (correct) BUG() to the default case on those maps. This
will also allow us to catch potential errors in maps setup in future.
Signed-off-by: Dmitry Eremin-Solenikov <dmitry_eremin@mentor.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mtd/map.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h index 8b9bfd7dcaa3..4b02512e421c 100644 --- a/include/linux/mtd/map.h +++ b/include/linux/mtd/map.h @@ -329,7 +329,7 @@ static inline int map_word_bitsset(struct map_info *map, map_word val1, map_word static inline map_word map_word_load(struct map_info *map, const void *ptr) { - map_word r = {{0} }; + map_word r; if (map_bankwidth_is_1(map)) r.x[0] = *(unsigned char *)ptr; @@ -343,6 +343,8 @@ static inline map_word map_word_load(struct map_info *map, const void *ptr) #endif else if (map_bankwidth_is_large(map)) memcpy(r.x, ptr, map->bankwidth); + else + BUG(); return r; } @@ -392,7 +394,7 @@ static inline map_word map_word_ff(struct map_info *map) static inline map_word inline_map_read(struct map_info *map, unsigned long ofs) { - map_word uninitialized_var(r); + map_word r; if (map_bankwidth_is_1(map)) r.x[0] = __raw_readb(map->virt + ofs); @@ -426,6 +428,8 @@ static inline void inline_map_write(struct map_info *map, const map_word datum, #endif else if (map_bankwidth_is_large(map)) memcpy_toio(map->virt+ofs, datum.x, map->bankwidth); + else + BUG(); mb(); } |