From: Colin Ian King <colin.king@xxxxxxxxxxxxx> The check for ret < 0 is always false because ret is a (unsigned) size_t and not a (signed) ssize_t, hence simple_write_to_buffer failures are never detected. Fix this by making ret a ssize_t Addresses-Coverity: ("Unsigned compared against 0") Fixes: 8074a79fad2e ("platform/x86: intel_pmc_core: Add option to set/clear LPM mode") Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx> --- drivers/platform/x86/intel_pmc_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/platform/x86/intel_pmc_core.c b/drivers/platform/x86/intel_pmc_core.c index 3ae00ac85c75..d174aeb492e0 100644 --- a/drivers/platform/x86/intel_pmc_core.c +++ b/drivers/platform/x86/intel_pmc_core.c @@ -1360,7 +1360,7 @@ static ssize_t pmc_core_lpm_latch_mode_write(struct file *file, struct pmc_dev *pmcdev = s->private; bool clear = false, c10 = false; unsigned char buf[8]; - size_t ret; + ssize_t ret; int idx, m, mode; u32 reg; -- 2.30.2