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| author | Shrikanth Hegde <sshegde@linux.ibm.com> | 2024-04-12 12:20:47 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2024-04-29 16:51:15 +0300 |
| commit | 6d4341638516bf97b9a34947e0bd95035a8230a5 (patch) | |
| tree | 4aa7cce6c213b84becf0a842d78e80baa3d75c39 /arch/powerpc/platforms | |
| parent | 9c74ecfd0fc46e2eaf92c1b6169cc0c8a87f1dc2 (diff) | |
| download | linux-6d4341638516bf97b9a34947e0bd95035a8230a5.tar.xz | |
powerpc/pseries: Add failure related checks for h_get_mpp and h_get_ppp
Couple of Minor fixes:
- hcall return values are long. Fix that for h_get_mpp, h_get_ppp and
parse_ppp_data
- If hcall fails, values set should be at-least zero. It shouldn't be
uninitialized values. Fix that for h_get_mpp and h_get_ppp
Signed-off-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240412092047.455483-3-sshegde@linux.ibm.com
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/pseries/lpar.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/lparcfg.c | 6 |
2 files changed, 6 insertions, 6 deletions
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index 4e9916bb03d7..c1d8bee8f701 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -1886,10 +1886,10 @@ out: * h_get_mpp * H_GET_MPP hcall returns info in 7 parms */ -int h_get_mpp(struct hvcall_mpp_data *mpp_data) +long h_get_mpp(struct hvcall_mpp_data *mpp_data) { - int rc; - unsigned long retbuf[PLPAR_HCALL9_BUFSIZE]; + unsigned long retbuf[PLPAR_HCALL9_BUFSIZE] = {0}; + long rc; rc = plpar_hcall9(H_GET_MPP, retbuf); diff --git a/arch/powerpc/platforms/pseries/lparcfg.c b/arch/powerpc/platforms/pseries/lparcfg.c index 679efcf21628..6e7029640c0c 100644 --- a/arch/powerpc/platforms/pseries/lparcfg.c +++ b/arch/powerpc/platforms/pseries/lparcfg.c @@ -113,8 +113,8 @@ struct hvcall_ppp_data { */ static unsigned int h_get_ppp(struct hvcall_ppp_data *ppp_data) { - unsigned long rc; - unsigned long retbuf[PLPAR_HCALL9_BUFSIZE]; + unsigned long retbuf[PLPAR_HCALL9_BUFSIZE] = {0}; + long rc; rc = plpar_hcall9(H_GET_PPP, retbuf); @@ -197,7 +197,7 @@ static void parse_ppp_data(struct seq_file *m) struct hvcall_ppp_data ppp_data; struct device_node *root; const __be32 *perf_level; - int rc; + long rc; rc = h_get_ppp(&ppp_data); if (rc) |