git: 6503ae09604f - stable/13 - LinuxKPI: pci.h: always initialize return value

The branch stable/13 has been updated by bz:

URL: https://cgit.FreeBSD.org/src/commit/?id=6503ae09604f362e1446583bed30c69a6716b0e6

commit 6503ae09604f362e1446583bed30c69a6716b0e6
Author:     Bjoern A. Zeeb <bz@FreeBSD.org>
AuthorDate: 2023-04-20 15:59:33 +0000
Commit:     Bjoern A. Zeeb <bz@FreeBSD.org>
CommitDate: 2023-06-26 09:14:11 +0000

    LinuxKPI: pci.h: always initialize return value
    
    In pcie_capability_read_*() always initialize the return value to
    avoid warnings of uninitialized values in callers.
    
    Sponsored by:   The FreeBSD Foundation
    Differential Revision:  https://reviews.freebsd.org/D39721
    
    (cherry picked from commit 0e8953b94b7481a53945cbd1e16517773996e16e)
---
 sys/compat/linuxkpi/common/include/linux/pci.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/compat/linuxkpi/common/include/linux/pci.h b/sys/compat/linuxkpi/common/include/linux/pci.h
index f8071524c9e0..55435f6b72bc 100644
--- a/sys/compat/linuxkpi/common/include/linux/pci.h
+++ b/sys/compat/linuxkpi/common/include/linux/pci.h
@@ -1198,6 +1198,7 @@ static bool pcie_capability_reg_implemented(struct pci_dev *dev, int pos)
 static inline int
 pcie_capability_read_dword(struct pci_dev *dev, int pos, u32 *dst)
 {
+	*dst = 0;
 	if (pos & 3)
 		return -EINVAL;
 
@@ -1210,6 +1211,7 @@ pcie_capability_read_dword(struct pci_dev *dev, int pos, u32 *dst)
 static inline int
 pcie_capability_read_word(struct pci_dev *dev, int pos, u16 *dst)
 {
+	*dst = 0;
 	if (pos & 3)
 		return -EINVAL;