diff options
| author | Dong Du <Dd_nirvana@sjtu.edu.cn> | 2021-11-25 18:38:17 +0800 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2021-11-30 10:40:35 +0530 |
| commit | 7e777069664465cb36bb14801c7e17c143911f9b (patch) | |
| tree | b034a65ff8d6804b88c2004368b0b1a5e7925997 | |
| parent | 7a22c780df587ca298b3566fe5d0fd396746decd (diff) | |
lib: sbi: Resolve the uninitialized complaint in sbi_pmu
A recent commit (b28f0700) turns to read from CSR_MCOUNTINHIBIT after
checking the SBI_HART_HAS_MCOUNTINHIBIT HART feature, which leaves the
mctr_inhbt uninitialized in pmu_ctr_find_hw().
As a result, compiler will complain:
error: 'mctr_inhbt' may be used uninitialized in this function.
This commit resolves the issue by assigning an initial value to mctr_inhbt.
Signed-off-by: Dong Du <Dd_nirvana@sjtu.edu.cn>
Reviewed-by: Xiang W <wxjstz@126.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
| -rw-r--r-- | lib/sbi/sbi_pmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sbi/sbi_pmu.c b/lib/sbi/sbi_pmu.c index a0eb359..5950a20 100644 --- a/lib/sbi/sbi_pmu.c +++ b/lib/sbi/sbi_pmu.c @@ -489,7 +489,7 @@ static int pmu_ctr_find_hw(unsigned long cbase, unsigned long cmask, unsigned lo unsigned long ctr_mask; int i, ret = 0, fixed_ctr, ctr_idx = SBI_ENOTSUPP; struct sbi_pmu_hw_event *temp; - unsigned long mctr_inhbt; + unsigned long mctr_inhbt = 0; u32 hartid = current_hartid(); struct sbi_scratch *scratch = sbi_scratch_thishart_ptr(); |