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Subject[patch] gru: fix a sanity test in gru_set_context_option()
"req.val1 == -1" is valid but it doesn't make sense to check
gru_base[-1]. gru_base[] is a global array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c
index c4acac7..e7c37b2 100644
--- a/drivers/misc/sgi-gru/grufault.c
+++ b/drivers/misc/sgi-gru/grufault.c
@@ -876,7 +876,8 @@ int gru_set_context_option(unsigned long arg)
switch (req.op) {
case sco_blade_chiplet:
/* Select blade/chiplet for GRU context */
- if (req.val1 < -1 || req.val1 >= GRU_MAX_BLADES || !gru_base[req.val1] ||
+ if (req.val1 < -1 || req.val1 >= GRU_MAX_BLADES ||
+ (req.val1 != -1 && !gru_base[req.val1]) ||
req.val0 < -1 || req.val0 >= GRU_CHIPLETS_PER_HUB) {
ret = -EINVAL;
} else {

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