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Avoid nullptr arithmetic in VP8BitReaderSetBuffer

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When start is nullptr, the IO is not used afterwards
anyway, so there is not risk.

Change-Id: I0a828aec85c6e228e95dfed4a40d348275a7c577
This commit is contained in:
Vincent Rabaud 2025-01-30 00:12:15 +01:00
parent f8f2410710
commit 654bfb040c
1 changed files with 8 additions and 5 deletions
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13
src/utils/bit_reader_utils.c
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@ -15,6 +15,8 @@
#include "src/webp/config.h" #include "src/webp/config.h"
#endif #endif
#include <stddef.h>
#include "src/dsp/cpu.h" #include "src/dsp/cpu.h"
#include "src/utils/bit_reader_inl_utils.h" #include "src/utils/bit_reader_inl_utils.h"
#include "src/utils/utils.h" #include "src/utils/utils.h"
@ -25,11 +27,12 @@
void VP8BitReaderSetBuffer(VP8BitReader* const br, void VP8BitReaderSetBuffer(VP8BitReader* const br,
const uint8_t* const start, const uint8_t* const start,
size_t size) { size_t size) {
br->buf_ = start; if (start != NULL) {
br->buf_end_ = start + size; br->buf_ = start;
br->buf_max_ = br->buf_end_ = start + size;
(size >= sizeof(lbit_t)) ? start + size - sizeof(lbit_t) + 1 br->buf_max_ =
: start; (size >= sizeof(lbit_t)) ? start + size - sizeof(lbit_t) + 1 : start;
}
} }
void VP8InitBitReader(VP8BitReader* const br, void VP8InitBitReader(VP8BitReader* const br,