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| author | Tor Andersson <tor.andersson@artifex.com> | 2018-06-19 13:15:45 +0200 |
|---|---|---|
| committer | Tor Andersson <tor.andersson@artifex.com> | 2018-06-22 16:23:34 +0200 |
| commit | 3a263069d58416c251ef9f6a100a54be1e90dc0b (patch) | |
| tree | 96a115f6b00eeb7c403d5a212e005ed26bc9e3cf /source/fitz/memory.c | |
| parent | 502a9f1d230821d53fe9155a590f6b5f8a80ea2a (diff) | |
| download | mupdf-3a263069d58416c251ef9f6a100a54be1e90dc0b.tar.xz | |
Check pointer for NULL in fz_free before locking.
Diffstat (limited to 'source/fitz/memory.c')
| -rw-r--r-- | source/fitz/memory.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/source/fitz/memory.c b/source/fitz/memory.c index 09df7cda..8ba343e5 100644 --- a/source/fitz/memory.c +++ b/source/fitz/memory.c @@ -198,9 +198,12 @@ fz_resize_array_no_throw(fz_context *ctx, void *p, size_t count, size_t size) void fz_free(fz_context *ctx, void *p) { - fz_lock(ctx, FZ_LOCK_ALLOC); - ctx->alloc->free(ctx->alloc->user, p); - fz_unlock(ctx, FZ_LOCK_ALLOC); + if (p) + { + fz_lock(ctx, FZ_LOCK_ALLOC); + ctx->alloc->free(ctx->alloc->user, p); + fz_unlock(ctx, FZ_LOCK_ALLOC); + } } char * |