From: Heiner Kallweit <hkallweit1@gmail.com>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>
Subject: [PATCH] PCI: Fix handling of pci user accessor return codes in syscalls
Date: Sun, 24 Jan 2021 16:39:32 +0100 [thread overview]
Message-ID: <f1220314-e518-1e18-bf94-8e6f8c703758@gmail.com> (raw)
Referenced commit changed the user accessors to return negative errno's
on error, seems this wasn't reflected in all users. Here it doesn't
really make a difference because the effective check is the same.
Fixes: 34e3207205ef ("PCI: handle positive error codes")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
drivers/pci/syscall.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/pci/syscall.c b/drivers/pci/syscall.c
index 31e39558d..8b003c890 100644
--- a/drivers/pci/syscall.c
+++ b/drivers/pci/syscall.c
@@ -20,7 +20,7 @@ SYSCALL_DEFINE5(pciconfig_read, unsigned long, bus, unsigned long, dfn,
u16 word;
u32 dword;
long err;
- long cfg_ret;
+ int cfg_ret;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
@@ -46,7 +46,7 @@ SYSCALL_DEFINE5(pciconfig_read, unsigned long, bus, unsigned long, dfn,
}
err = -EIO;
- if (cfg_ret != PCIBIOS_SUCCESSFUL)
+ if (cfg_ret)
goto error;
switch (len) {
@@ -105,7 +105,7 @@ SYSCALL_DEFINE5(pciconfig_write, unsigned long, bus, unsigned long, dfn,
if (err)
break;
err = pci_user_write_config_byte(dev, off, byte);
- if (err != PCIBIOS_SUCCESSFUL)
+ if (err)
err = -EIO;
break;
@@ -114,7 +114,7 @@ SYSCALL_DEFINE5(pciconfig_write, unsigned long, bus, unsigned long, dfn,
if (err)
break;
err = pci_user_write_config_word(dev, off, word);
- if (err != PCIBIOS_SUCCESSFUL)
+ if (err)
err = -EIO;
break;
@@ -123,7 +123,7 @@ SYSCALL_DEFINE5(pciconfig_write, unsigned long, bus, unsigned long, dfn,
if (err)
break;
err = pci_user_write_config_dword(dev, off, dword);
- if (err != PCIBIOS_SUCCESSFUL)
+ if (err)
err = -EIO;
break;
--
2.30.0
next reply other threads:[~2021-01-24 15:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-24 15:39 Heiner Kallweit [this message]
2021-01-25 19:57 ` [PATCH] PCI: Fix handling of pci user accessor return codes in syscalls Bjorn Helgaas
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