Patch "platform/x86: p2sb: Make p2sb_get_devfn() return void" has been added to the 6.1-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    platform/x86: p2sb: Make p2sb_get_devfn() return void

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     platform-x86-p2sb-make-p2sb_get_devfn-return-void.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 4d589f71d27e21941306256a74a5526fc0f42863
Author: Hans de Goede <hdegoede@xxxxxxxxxx>
Date:   Tue Mar 5 10:45:00 2024 +0100

    platform/x86: p2sb: Make p2sb_get_devfn() return void
    
    [ Upstream commit 3ff5873602a874035ba28826852bd45393002a08 ]
    
    p2sb_get_devfn() always succeeds, make it return void and
    remove error checking from its callers.
    
    Reviewed-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@xxxxxxx>
    Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
    Link: https://lore.kernel.org/r/20240305094500.23778-1-hdegoede@xxxxxxxxxx
    Stable-dep-of: 360c400d0f56 ("p2sb: Do not scan and remove the P2SB device when it is unhidden")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/platform/x86/p2sb.c b/drivers/platform/x86/p2sb.c
index 053be5c5e0ca..687e341e3206 100644
--- a/drivers/platform/x86/p2sb.c
+++ b/drivers/platform/x86/p2sb.c
@@ -43,7 +43,7 @@ struct p2sb_res_cache {
 
 static struct p2sb_res_cache p2sb_resources[NR_P2SB_RES_CACHE];
 
-static int p2sb_get_devfn(unsigned int *devfn)
+static void p2sb_get_devfn(unsigned int *devfn)
 {
 	unsigned int fn = P2SB_DEVFN_DEFAULT;
 	const struct x86_cpu_id *id;
@@ -53,7 +53,6 @@ static int p2sb_get_devfn(unsigned int *devfn)
 		fn = (unsigned int)id->driver_data;
 
 	*devfn = fn;
-	return 0;
 }
 
 static bool p2sb_valid_resource(const struct resource *res)
@@ -132,9 +131,7 @@ static int p2sb_cache_resources(void)
 	int ret;
 
 	/* Get devfn for P2SB device itself */
-	ret = p2sb_get_devfn(&devfn_p2sb);
-	if (ret)
-		return ret;
+	p2sb_get_devfn(&devfn_p2sb);
 
 	bus = p2sb_get_bus(NULL);
 	if (!bus)
@@ -191,17 +188,13 @@ static int p2sb_cache_resources(void)
 int p2sb_bar(struct pci_bus *bus, unsigned int devfn, struct resource *mem)
 {
 	struct p2sb_res_cache *cache;
-	int ret;
 
 	bus = p2sb_get_bus(bus);
 	if (!bus)
 		return -ENODEV;
 
-	if (!devfn) {
-		ret = p2sb_get_devfn(&devfn);
-		if (ret)
-			return ret;
-	}
+	if (!devfn)
+		p2sb_get_devfn(&devfn);
 
 	cache = &p2sb_resources[PCI_FUNC(devfn)];
 	if (cache->bus_dev_id != bus->dev.id)