Specifying the value mask is not supported for block commands,
abort if it is specified anyway.

Signed-off-by: Guenter Roeck <[email protected]>
---
 tools/i2cset.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/tools/i2cset.c b/tools/i2cset.c
index c59186b..bdc16f8 100644
--- a/tools/i2cset.c
+++ b/tools/i2cset.c
@@ -227,6 +227,10 @@ int main(int argc, char *argv[])
                                fprintf(stderr, "Error: PEC not supported for 
I2C block writes!\n");
                                help();
                        }
+                       if (maskp) {
+                               fprintf(stderr, "Error: Mask not supported for 
block writes!\n");
+                               help();
+                       }
                        for (len = 0; len + flags + 5 < argc; len++) {
                                value = strtol(argv[flags + len + 4], &end, 0);
                                if (*end || value < 0 || value > 0xff) {
-- 
1.7.0.4

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