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Fixed _FAT_cache_constructor to return NULL on error, not false

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Fixed _FAT_cache_flush to return false on error. With thanks to xorloser
This commit is contained in:
Michael Chisholm 2008-05-01 09:31:34 +00:00
parent 23a406ddd1
commit bef33572eb
2 changed files with 10 additions and 4 deletions
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13
source/cache.c
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@ -31,6 +31,10 @@
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
2007-11-14 - Chishm
* Fixed _FAT_cache_constructor to return NULL on error, not false
* Fixed _FAT_cache_flush to return false on error. With thanks to xorloser
*/
#include <string.h>
@ -54,7 +58,7 @@ CACHE* _FAT_cache_constructor (u32 numberOfPages, const IO_INTERFACE* discInterf
cache = (CACHE*) _FAT_mem_allocate (sizeof(CACHE));
if (cache == NULL) {
return false;
return NULL;
}
cache->disc = discInterface;
@ -64,7 +68,7 @@ CACHE* _FAT_cache_constructor (u32 numberOfPages, const IO_INTERFACE* discInterf
cacheEntries = (CACHE_ENTRY*) _FAT_mem_allocate ( sizeof(CACHE_ENTRY) * numberOfPages);
if (cacheEntries == NULL) {
_FAT_mem_free (cache);
return false;
return NULL;
}
for (i = 0; i < numberOfPages; i++) {
@ -79,7 +83,7 @@ CACHE* _FAT_cache_constructor (u32 numberOfPages, const IO_INTERFACE* discInterf
if (cache->pages == NULL) {
_FAT_mem_free (cache->cacheEntries);
_FAT_mem_free (cache);
return false;
return NULL;
}
return cache;
@ -217,7 +221,7 @@ bool _FAT_cache_flush (CACHE* cache) {
for (i = 0; i < cache->numberOfPages; i++) {
if (cache->cacheEntries[i].dirty) {
if (!_FAT_disc_writeSectors (cache->disc, cache->cacheEntries[i].sector, 1, cache->pages + CACHE_PAGE_SIZE * i)) {
return CACHE_FREE;
return false;
}
}
cache->cacheEntries[i].count = 0;
@ -235,3 +239,4 @@ void _FAT_cache_invalidate (CACHE* cache) {
cache->cacheEntries[i].dirty = false;
}
}

1
source/cache.h
View File

@ -116,3 +116,4 @@ CACHE* _FAT_cache_constructor (u32 numberOfPages, const IO_INTERFACE* discInterf
void _FAT_cache_destructor (CACHE* cache);
#endif // _CACHE_H