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| author | Vasily Gorbik <gor@linux.ibm.com> | 2019-08-19 10:44:54 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2019-08-26 12:51:17 +0200 |
| commit | a45425d8a5a672d3322164cfce10b7b6fb32fcc2 (patch) | |
| tree | 4ae2dd8b3efe44027a543c4921af6d6a9b54a127 /drivers/s390/char/vmcp.c | |
| parent | 915ef7bda76466a5542a76694c08709895383f1c (diff) | |
| download | linux-a45425d8a5a672d3322164cfce10b7b6fb32fcc2.tar.gz linux-a45425d8a5a672d3322164cfce10b7b6fb32fcc2.tar.bz2 linux-a45425d8a5a672d3322164cfce10b7b6fb32fcc2.zip | |
s390/vmcp: correct early_param handling
Check "p" is not NULL before passing it to memparse, which doesn't
handle that case explicitly.
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'drivers/s390/char/vmcp.c')
| -rw-r--r-- | drivers/s390/char/vmcp.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c index 0fa1b6b1491a..9e066281e2d0 100644 --- a/drivers/s390/char/vmcp.c +++ b/drivers/s390/char/vmcp.c @@ -43,6 +43,8 @@ static struct cma *vmcp_cma; static int __init early_parse_vmcp_cma(char *p) { + if (!p) + return 1; vmcp_cma_size = ALIGN(memparse(p, NULL), PAGE_SIZE); return 0; } |