mountmgr.sys: Don't attempt to read from invalid media.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49615

mountmgr.sys: Don't attempt to read from invalid media.
90d50bc6 · Alistair Leslie-Hughes · Alexandre Julliard · c38aa80e · 90d50bc6
Commit 90d50bc6 authored Jan 19, 2023 by Alistair Leslie-Hughes Committed by Alexandre Julliard Jan 24, 2023
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device.c dlls/mountmgr.sys/device.c +8 -0

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--- a/dlls/mountmgr.sys/device.c
+++ b/dlls/mountmgr.sys/device.c
@@ -899,6 +899,14 @@ static BOOL get_volume_device_info( struct volume *volume )
    }
    else
    {
+        if(GetLastError() == ERROR_NOT_READY)
+        {
+            TRACE( "%s: removable drive with no inserted media\n", debugstr_a(unix_device) );
+            volume->fs_type = FS_UNKNOWN;
+            CloseHandle( handle );
+            return TRUE;
+        }
+
        volume->fs_type = VOLUME_ReadFATSuperblock( handle, superblock );
        if (volume->fs_type == FS_UNKNOWN) volume->fs_type = VOLUME_ReadCDSuperblock( handle, superblock );
    }