The pciconfig_read syscall uses an err variable is currently declared as
long and even though it matches the function signature as generated by
the SYSCALL_DEFINEx() macro is a bit wasteful as the syscall returns
a handful of simple error codes.
Thus, change the err value type from long to int to lower the storage
requirements and also align it with the pciconfig_write syscall.
Related:
commit ef9e4005cbaf ("PCI: Align checking of syscall user config accessors")
Signed-off-by: Krzysztof Wilczyński <kw@xxxxxxxxx>
---
drivers/pci/syscall.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/pci/syscall.c b/drivers/pci/syscall.c
index b842af1e06b8..525f16caed1d 100644
--- a/drivers/pci/syscall.c
+++ b/drivers/pci/syscall.c
@@ -19,8 +19,7 @@ SYSCALL_DEFINE5(pciconfig_read, unsigned long, bus, unsigned long, dfn,
u8 byte;
u16 word;
u32 dword;
- long err;
- int cfg_ret;
+ int err, cfg_ret;
err = -EPERM;
if (!capable(CAP_SYS_ADMIN))
--
2.32.0
