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WebPMuxCreate() error handling:

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Directly return NULL if no allocation is done yet.

Change-Id: If39ab7f5a55833263d3372fa0a5d9b0a600cb9ed
This commit is contained in:
Urvang Joshi 2012-07-02 11:17:24 +05:30
parent 777341c3d0
commit 5d09a244b7
1 changed files with 5 additions and 5 deletions
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10
src/mux/muxread.c
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@ -89,21 +89,21 @@ WebPMux* WebPMuxCreateInternal(const WebPData* const bitstream, int copy_data,
ChunkInit(&chunk); ChunkInit(&chunk);
// Sanity checks. // Sanity checks.
if (version != WEBP_MUX_ABI_VERSION) goto Err; // version mismatch if (version != WEBP_MUX_ABI_VERSION) return NULL; // version mismatch
if (bitstream == NULL) goto Err; if (bitstream == NULL) return NULL;
data = bitstream->bytes_; data = bitstream->bytes_;
size = bitstream->size_; size = bitstream->size_;
if (data == NULL) goto Err; if (data == NULL) return NULL;
if (size < RIFF_HEADER_SIZE) return NULL; if (size < RIFF_HEADER_SIZE) return NULL;
if (GetLE32(data + 0) != mktag('R', 'I', 'F', 'F') || if (GetLE32(data + 0) != mktag('R', 'I', 'F', 'F') ||
GetLE32(data + CHUNK_HEADER_SIZE) != mktag('W', 'E', 'B', 'P')) { GetLE32(data + CHUNK_HEADER_SIZE) != mktag('W', 'E', 'B', 'P')) {
goto Err; return NULL;
} }
mux = WebPMuxNew(); mux = WebPMuxNew();
if (mux == NULL) goto Err; if (mux == NULL) return NULL;
if (size < RIFF_HEADER_SIZE + TAG_SIZE) goto Err; if (size < RIFF_HEADER_SIZE + TAG_SIZE) goto Err;