After opening pathname, we must close ifd once we are done with it.
Fixes: b9274095c2c ("sandbox: Add a way to map a file into memory") Signed-off-by: Sean Anderson seanga2@gmail.com ---
arch/sandbox/cpu/os.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c index 85d0d6a1703..95c26d855ab 100644 --- a/arch/sandbox/cpu/os.c +++ b/arch/sandbox/cpu/os.c @@ -219,7 +219,7 @@ int os_map_file(const char *pathname, int os_flags, void **bufp, int *sizep) { void *ptr; off_t size; - int ifd; + int ifd, ret = 0;
ifd = os_open(pathname, os_flags); if (ifd < 0) { @@ -229,23 +229,28 @@ int os_map_file(const char *pathname, int os_flags, void **bufp, int *sizep) size = os_filesize(ifd); if (size < 0) { printf("Cannot get file size of '%s'\n", pathname); - return -EIO; + ret = -EIO; + goto out; } if ((unsigned long long)size > (unsigned long long)SIZE_MAX) { printf("File '%s' too large to map\n", pathname); - return -EIO; + ret = -EIO; + goto out; }
ptr = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, ifd, 0); if (ptr == MAP_FAILED) { printf("Can't map file '%s': %s\n", pathname, strerror(errno)); - return -EPERM; + ret = -EPERM; + goto out; }
*bufp = ptr; *sizep = size;
- return 0; +out: + os_close(ifd); + return ret; }
int os_unmap(void *buf, int size)