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| author | Martyn Welch <martyn@welchs.me.uk> | 2016-10-21 17:36:19 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-10-28 08:25:18 -0400 |
| commit | 6ad37567b6b886121e250036e489d82cde5e5e94 (patch) | |
| tree | adfaced0a77fe648869c1888ff63cddaff2eabbf /drivers/vme | |
| parent | cfcc1456e4a2afdca85c7df3baa777f18da1d642 (diff) | |
| download | lwn-6ad37567b6b886121e250036e489d82cde5e5e94.tar.gz lwn-6ad37567b6b886121e250036e489d82cde5e5e94.zip | |
vme: vme_get_size potentially returning incorrect value on failure
The function vme_get_size returns the size of the window to the caller,
however it doesn't check the return value of the call to vme_master_get.
Return 0 on failure rather than anything else.
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/vme')
| -rw-r--r-- | drivers/vme/vme.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/vme/vme.c b/drivers/vme/vme.c index 15b64076bc26..bdbadaa47ef3 100644 --- a/drivers/vme/vme.c +++ b/drivers/vme/vme.c @@ -156,12 +156,16 @@ size_t vme_get_size(struct vme_resource *resource) case VME_MASTER: retval = vme_master_get(resource, &enabled, &base, &size, &aspace, &cycle, &dwidth); + if (retval) + return 0; return size; break; case VME_SLAVE: retval = vme_slave_get(resource, &enabled, &base, &size, &buf_base, &aspace, &cycle); + if (retval) + return 0; return size; break; |