Attachment 106847 Details for Bug 84325 – Patch for libpciaccess

[patch] Patch for libpciaccess

patch-libpciaccess-pci_sys-refcnt.diff (text/plain), 1.10 KB, created by Vitaliy Filippov on 2014-09-25 11:15:50 UTC

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Creator: Vitaliy Filippov

Created: 2014-09-25 11:15:50 UTC

Size: 1.10 KB

patch

obsolete

>Patch for libpciaccess 0.13.2 to "reference count" init/cleanup calls.
>
>--- a/src/common_init.c	2014-09-14 03:17:38.628195344 +0400
>+++ b/src/common_init.c	2014-09-14 03:19:31.402246351 +0400
>@@ -36,6 +36,7 @@
> #include "pciaccess_private.h"
> 
> _pci_hidden struct pci_system * pci_sys;
>+static pci_sys_refcnt = 0;
> 
> /**
>  * Initialize the PCI subsystem for access.
>@@ -52,6 +53,11 @@ pci_system_init( void )
> {
>     int err = ENOSYS;
> 
>+    if ( pci_sys_refcnt > 0 ) {
>+	pci_sys_refcnt++;
>+	return 0;
>+    }
>+
> #ifdef linux
>     err = pci_system_linux_sysfs_create();
> #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
>@@ -66,6 +72,10 @@ pci_system_init( void )
>     err = pci_system_x86_create();
> #endif
> 
>+    if ( pci_sys ) {
>+	pci_sys_refcnt = 1;
>+    }
>+
>     return err;
> }
> 
>@@ -91,6 +101,9 @@ pci_system_cleanup( void )
> 
>     if ( pci_sys == NULL ) {
> 	return;
>+    } else if ( pci_sys_refcnt > 1 ) {
>+	pci_sys_refcnt--;
>+	return;
>     }
> 
>     pci_io_cleanup();
>@@ -123,4 +136,5 @@ pci_system_cleanup( void )
> 
>     free( pci_sys );
>     pci_sys = NULL;
>+    pci_sys_refcnt = 0;
> }

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