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lfs: Validate lfs-cfg sizes before performing arithmetic logics with them

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Roy Kupershmid
2019-08-31 16:57:56 +03:00
parent 494dd6673d
commit 0c77123eee
1 changed files with 6 additions and 0 deletions
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6
lfs.c
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@@ -3369,6 +3369,12 @@ static int lfs_init(lfs_t *lfs, const struct lfs_config *cfg) {
lfs->cfg = cfg; lfs->cfg = cfg;
int err = 0; int err = 0;
// validate that the lfs-cfg sizes were initiated properly before
// performing any arithmetic logics with them
LFS_ASSERT(lfs->cfg->read_size != 0);
LFS_ASSERT(lfs->cfg->prog_size != 0);
LFS_ASSERT(lfs->cfg->cache_size != 0);
// check that block size is a multiple of cache size is a multiple // check that block size is a multiple of cache size is a multiple
// of prog and read sizes // of prog and read sizes
LFS_ASSERT(lfs->cfg->cache_size % lfs->cfg->read_size == 0); LFS_ASSERT(lfs->cfg->cache_size % lfs->cfg->read_size == 0);